Update lifespan tests

tests/server/test_lifespan.py

@@ -4,6 +4,10 @@ from collections.abc import AsyncIterator
 from contextlib import asynccontextmanager
 
 import anyio
+import pytest
+from mcp.server.lowlevel.server import NotificationOptions, Server
+from mcp.server.models import InitializationOptions
+from mcp.shared.message import SessionMessage
 from mcp.types import (
     ClientCapabilities,
     Implementation,
@@ -17,6 +21,118 @@ from pydantic import TypeAdapter
 from fastmcp import Context, FastMCP
 
 
+@pytest.mark.anyio
+async def test_lowlevel_server_lifespan():
+    """Test that lifespan works in low-level server."""
+
+    @asynccontextmanager
+    async def test_lifespan(server: Server) -> AsyncIterator[dict[str, bool]]:
+        """Test lifespan context that tracks startup/shutdown."""
+        context = {"started": False, "shutdown": False}
+        try:
+            context["started"] = True
+            yield context
+        finally:
+            context["shutdown"] = True
+
+    server = Server("test", lifespan=test_lifespan)
+
+    # Create memory streams for testing
+    send_stream1, receive_stream1 = anyio.create_memory_object_stream(100)
+    send_stream2, receive_stream2 = anyio.create_memory_object_stream(100)
+
+    # Create a tool that accesses lifespan context
+    @server.call_tool()
+    async def check_lifespan(name: str, arguments: dict) -> list:
+        ctx = server.request_context
+        assert isinstance(ctx.lifespan_context, dict)
+        assert ctx.lifespan_context["started"]
+        assert not ctx.lifespan_context["shutdown"]
+        return [{"type": "text", "text": "true"}]
+
+    # Run server in background task
+    async with (
+        anyio.create_task_group() as tg,
+        send_stream1,
+        receive_stream1,
+        send_stream2,
+        receive_stream2,
+    ):
+
+        async def run_server():
+            await server.run(
+                receive_stream1,
+                send_stream2,
+                InitializationOptions(
+                    server_name="test",
+                    server_version="0.1.0",
+                    capabilities=server.get_capabilities(
+                        notification_options=NotificationOptions(),
+                        experimental_capabilities={},
+                    ),
+                ),
+                raise_exceptions=True,
+            )
+
+        tg.start_soon(run_server)
+
+        # Initialize the server
+        params = InitializeRequestParams(
+            protocolVersion="2024-11-05",
+            capabilities=ClientCapabilities(),
+            clientInfo=Implementation(name="test-client", version="0.1.0"),
+        )
+        await send_stream1.send(
+            SessionMessage(
+                JSONRPCMessage(
+                    root=JSONRPCRequest(
+                        jsonrpc="2.0",
+                        id=1,
+                        method="initialize",
+                        params=TypeAdapter(InitializeRequestParams).dump_python(params),
+                    )
+                )
+            )
+        )
+        response = await receive_stream2.receive()
+        response = response.message
+
+        # Send initialized notification
+        await send_stream1.send(
+            SessionMessage(
+                JSONRPCMessage(
+                    root=JSONRPCNotification(
+                        jsonrpc="2.0",
+                        method="notifications/initialized",
+                    )
+                )
+            )
+        )
+
+        # Call the tool to verify lifespan context
+        await send_stream1.send(
+            SessionMessage(
+                JSONRPCMessage(
+                    root=JSONRPCRequest(
+                        jsonrpc="2.0",
+                        id=2,
+                        method="tools/call",
+                        params={"name": "check_lifespan", "arguments": {}},
+                    )
+                )
+            )
+        )
+
+        # Get response and verify
+        response = await receive_stream2.receive()
+        response = response.message
+        assert response.root.result["content"][0]["text"] == "true"
+
+        # Cancel server task
+        tg.cancel_scope.cancel()
+
+
+@pytest.mark.anyio
 async def test_fastmcp_server_lifespan():
     """Test that lifespan works in FastMCP server."""
 
@@ -71,41 +187,49 @@ async def test_fastmcp_server_lifespan():
             clientInfo=Implementation(name="test-client", version="0.1.0"),
         )
         await send_stream1.send(
-            JSONRPCMessage(
-                root=JSONRPCRequest(
-                    jsonrpc="2.0",
-                    id=1,
-                    method="initialize",
-                    params=TypeAdapter(InitializeRequestParams).dump_python(params),
+            SessionMessage(
+                JSONRPCMessage(
+                    root=JSONRPCRequest(
+                        jsonrpc="2.0",
+                        id=1,
+                        method="initialize",
+                        params=TypeAdapter(InitializeRequestParams).dump_python(params),
+                    )
                 )
             )
         )
         response = await receive_stream2.receive()
+        response = response.message
 
         # Send initialized notification
         await send_stream1.send(
-            JSONRPCMessage(
-                root=JSONRPCNotification(
-                    jsonrpc="2.0",
-                    method="notifications/initialized",
+            SessionMessage(
+                JSONRPCMessage(
+                    root=JSONRPCNotification(
+                        jsonrpc="2.0",
+                        method="notifications/initialized",
+                    )
                 )
             )
         )
 
         # Call the tool to verify lifespan context
         await send_stream1.send(
-            JSONRPCMessage(
-                root=JSONRPCRequest(
-                    jsonrpc="2.0",
-                    id=2,
-                    method="tools/call",
-                    params={"name": "check_lifespan", "arguments": {}},
+            SessionMessage(
+                JSONRPCMessage(
+                    root=JSONRPCRequest(
+                        jsonrpc="2.0",
+                        id=2,
+                        method="tools/call",
+                        params={"name": "check_lifespan", "arguments": {}},
+                    )
                 )
             )
         )
 
         # Get response and verify
         response = await receive_stream2.receive()
+        response = response.message
         assert response.root.result["content"][0]["text"] == "true"
 
         # Cancel server task